package com.cc.reggie.controller;


import com.cc.reggie.common.R;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.UUID;

@RestController
@RequestMapping("/common")
public class CommonController {

    private final StringHttpMessageConverter stringHttpMessageConverter;
    @Value("${reggie.path}")
    private String basePath;

    public CommonController(StringHttpMessageConverter stringHttpMessageConverter) {
        this.stringHttpMessageConverter = stringHttpMessageConverter;
    }


    @PostMapping("/upload")
    public R<String> upload(MultipartFile file) {

        String originalFilename = file.getOriginalFilename();
        String suffix = originalFilename.substring(originalFilename.lastIndexOf("."));

        String fileName = UUID.randomUUID().toString() + suffix;

        File dir = new File(basePath);
        if(!dir.exists()) {
            dir.mkdirs();
        }

        try {
            file.transferTo(new File(basePath+fileName));
        } catch (IOException e) {
           // e.printStackTrace();
        }

        return R.success(fileName);

    }


    @GetMapping("/download")
    public void download(String name, HttpServletResponse response) {

        try {
            FileInputStream fileInputStream = new FileInputStream(new File(basePath + name));

            ServletOutputStream outputStream = response.getOutputStream();

            response.setContentType("image/jpeg");

            int len = 0;
            byte[] bytes = new byte[1024];
            while((len = fileInputStream.read(bytes)) != -1){
                outputStream.write(bytes,0,len);
                outputStream.flush();
            }

            outputStream.close();
            fileInputStream.close();


        } catch (Exception e) {
          //  e.printStackTrace();

        }


    }


}
